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Aim: To study of the interactions of two new ruthenium(II) complexes (C1 and C2) with calf thymus (CT)-DNA; production of RuO nanoparticles using the complexes precursor.
Materials & Methods: Complex C1 was characterized by x-ray crystallography. The binding of the complexes with (CT)-DNA was studied using techniques that include electronic absorption spectra, fluorescence and redox behavior. The preparation of RuO nanoparticles was carried out by thermal decomposition.
Results: The interaction mode of DNA with complexes is the type of electrostatic. It was revealed that sonication of the samples, before thermal decomposition, has been affected the morphologies and sizes of the resulting nanoparticles.
Conclusion: The complexes are capable of interaction with DNA molecules and they have a good potential to prepare nanostructures.
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http://dx.doi.org/10.2217/nnm-2018-0174 | DOI Listing |
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August 2025
Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, Tehran, 14117-13116, Iran.
Downsizing metal nanoparticles into nanoclusters and single atoms represents a transformative approach to maximizing atom utilization efficiency for energy applications. Herein, a bovine serum albumin-templated synthetic strategy is developed to fabricate iron and nickel nanoclusters, which are subsequently hydrothermally composited with graphene oxide. Through KOH-catalyzed pyrolysis, the downsized metal nanoclusters and single atoms are embedded in a hierarchically porous protein/graphene-derived carbonaceous aerogel framework.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
August 2025
State Key Laboratory of Synergistic Chem-Bio Synthesis, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Micro-Nano Engineering Science, Shanghai Jiao Tong University, Shanghai, 200240, China.
Although being considered as a promising alternative to iridium-based catalysts in proton exchange membrane water electrolysis (PEM-WE), cost-effective ruthenium (Ru)-based anodic catalysts generally lack sufficient stability for harsh operating conditions. Here, we developed a facile method to fabricate erect nanoarrays of interweaved nanorods of zirconium-doped ruthenium oxide (ZrRuO) for long-term industrial-level oxygen evolution reaction (OER). This is accomplished by the spontaneous and abundant accumulation of Ru nanoparticles and Zr ions in pyridine-rich micellar brushes through coordination interactions, followed by direct calcination in air.
View Article and Find Full Text PDFNanoscale
August 2025
Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
Rational design of cost-effective and highly stable oxygen evolution reaction (OER) electrocatalysts represents a pivotal challenge for advancing efficient water electrolysis toward hydrogen production. In this study, we propose a novel approach of mechanochemical ball-milling followed by calcination to construct mica-supported nickel oxide (NiO/mica) composites. Metallic Ni nanoparticles were uniformly anchored on muscovite mica through high-energy ball-milling, followed by controlled oxidation at 600 °C for 4 h under an air atmosphere.
View Article and Find Full Text PDFAcc Chem Res
August 2025
Institute of Physical Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, D-35392 Giessen, Germany.
ConspectusSupported metal nanoparticles used in heterogeneous catalysis can be prepared by using various methods, including deposition-precipitation and wet-chemical impregnation. The formed metal particles oxidize during the calcination step, which is required to burn off the organic components of the metal precursors. Therefore, the final step in metal catalyst preparation is always a high-temperature hydrogen treatment.
View Article and Find Full Text PDFACS Appl Mater Interfaces
September 2025
Departamento de Química, Universitat Politècnica de València, Camino de Vera s/n, Valencia 46022, Spain.
Solar-assisted gaseous CO hydrogenation to CH is a potential strategy for favoring the transition to net zero emissions. Here, we report the development of a series of efficient metal-organic frameworks with MIL-101(Cr or Fe) topology decorated with RuO nanoparticles (ca. 0.
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